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Related Party Transactions and Balances - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2018 CAD ($) shares | Dec. 31, 2017 CAD ($) shares
Disclosure Of Transactions Between Related Parties [Line Items] |  |
Number of options issued | shares | 1,910,000 | 6,402,000
Share-based compensation expense | $ | $ 4,238,000 | $ 1,862,000
Members of key management [member] |  |
Disclosure Of Transactions Between Related Parties [Line Items] |  |
Number of options issued | shares | 150,000 | 3,575,000
Balance payable to key management | $ | $ 0 | $ 0
Board of director [member] |  |
Disclosure Of Transactions Between Related Parties [Line Items] |  |
Number of options issued | shares | 550,000 | 1,800,000
Share-based compensation expense | $ | $ 1,246,000 | $ 601,000

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- Definition The amounts payable resulting from related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2017-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2017-03-01&anchor=para_20&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2017-01-01 -Paragraph 18 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2017-03-01&anchor=para_18_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The increase (decrease) in equity resulting from share-based payment transactions. [Refer: Equity] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 106 -Subparagraph d -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_106_d_iii&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The number of share options granted in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2017-01-01 -Paragraph 45 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_45_b_ii&doctype=Standard -URIDate 2017-03-09 + Details
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- Details
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- Details
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